springmvc整合redis(补充一)

上一篇：http://blog.csdn.net/h996666/article/details/78124232

上一篇接口写的不太完整，只进行了简单的操作。

这篇补充对对象，JSON，List的添加。以及删除操作。

贴代码：

接口RedisService.java

public interface RedisService {/** * 添加 *  * @param key * @param value */void put(String key, Object value);/** * 添加 *  * @param key * @param value * @param expiredTime 过期时间 */void put(String key, Object value, Long expiredTime);/** * 获取 *  * @param key * @return */Object get(String key);/** * 删除 *  * @param key */void delete(String key);}

接口实现RedisServiceImpl.java

import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import org.apache.commons.lang3.StringUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.dao.DataAccessException;import org.springframework.data.redis.connection.RedisConnection;import org.springframework.data.redis.core.RedisCallback;import org.springframework.data.redis.core.RedisTemplate;import org.springframework.stereotype.Service;import com.service.redis.RedisService;@Servicepublic class RedisServiceImpl implements RedisService {@Autowiredprivate RedisTemplate<String, String> redisTemplate;/** * 添加 */@Overridepublic void put(String key, Object value) {put(key, value, null);}/** * 添加 */@Overridepublic void put(String key, Object value, Long expiredTime) {if(StringUtils.isBlank(key)) {return;}if (null == value) {return;}redisTemplate.execute(new RedisCallback<Long>() {@Overridepublic Long doInRedis(RedisConnection conn) throws DataAccessException {byte[] keyb = key.getBytes();byte[] valueb = toByteArray(value);conn.set(keyb, valueb);if (null != expiredTime) {conn.expire(keyb, expiredTime);}return 1l;}});}/** * 获取 */@Overridepublic Object get(String key) {Object value;value = redisTemplate.execute(new RedisCallback<Object>() {@Overridepublic Object doInRedis(RedisConnection conn) throws DataAccessException {byte[] keyb = key.getBytes();byte[] valueb = conn.get(keyb);return toObject(valueb);}});return value;}/** * 删除 */@Overridepublic void delete(String key) {redisTemplate.execute(new RedisCallback<Long>() {@Overridepublic Long doInRedis(RedisConnection conn) throws DataAccessException {byte[] keyb = key.getBytes();conn.del(keyb);return 1l;}});}/** * 将byte[] 转成 Object *  * @param bytes * @return */private Object toObject(byte[] bytes) {Object obj = null;ByteArrayInputStream bais = null;ObjectInputStream ois = null;try {bais = new ByteArrayInputStream(bytes);ois = new ObjectInputStream(bais);obj = ois.readObject();} catch(IOException e) {e.printStackTrace();} catch (ClassNotFoundException e) {e.printStackTrace();} finally {try {ois.close();bais.close();} catch (IOException e) {e.printStackTrace();}}return obj;}/** * object 转成 byte[] * @param obj * @return */private byte[] toByteArray(Object obj) {byte[] bytes = null;ByteArrayOutputStream baos = null;ObjectOutputStream oos = null;try {baos = new ByteArrayOutputStream();oos = new ObjectOutputStream(baos);oos.writeObject(obj);oos.flush();bytes = baos.toByteArray();} catch (IOException e) {e.printStackTrace();} finally {try {oos.close();baos.close();} catch (IOException e) {e.printStackTrace();}}return bytes;}}

JUNIT测试类：

import java.util.ArrayList;import java.util.List;import org.junit.Test;import org.springframework.beans.factory.annotation.Autowired;import com.alibaba.fastjson.JSONObject;import com.model.user.User;import com.service.redis.RedisService;import test.service.BaseTest;public class RedisServiceTest extends BaseTest {@Autowiredprivate RedisService redisService;/** * 添加对象(该对象需要实现Serializable接口) */@Testpublic void testPut_1() {User user = new User();user.setId(1001);user.setName("huang");redisService.put("user1", user);}/** * 添加JSON对象 */@Testpublic void testPut_2() {JSONObject user = new JSONObject();user.put("id", "1002");user.put("name", "zhang");redisService.put("user1", user);}/** * 添加数组 */@Testpublic void testPut_3() {List<User> userList = new ArrayList<User>();User user1 = new User();user1.setId(1001);user1.setName("huang");User user2 = new User();user2.setId(1002);user2.setName("zhang");User user3 = new User();user3.setId(1003);user3.setName("li");userList.add(user1);userList.add(user2);userList.add(user3);redisService.put("userList", userList);}/** * 获取 */@Testpublic void testGet() {System.out.println(redisService.get("userList"));}/** * 删除 */@Testpublic void testDelete() {redisService.delete("name");redisService.delete("age");redisService.delete("shuzi");}}